Flatworm eXit is quite safe to fish and invertebrates. Many people have treated their reef tank(s) successfully using Flatworm eXit without any problems. The most important factors are reducing the number of flatworms before commencing with the treatment and reducing the amount of the flatworm’s body fluids, released when they die, as fast as possible.

To begin, turn off UV, ozone and remove activated carbon. Keep the skimmer turned on. Do not underestimate the number of flatworms in your system. For example, a significant number of flatworms can be hiding in crevices. Blow water in to these or any other potential hiding places water to push the flatworms out. For that purpose you can use a powerhead or a turkey baster. Before commencing with the treatment, try to siphon out as many flatworms as possible because they excrete a large amount of toxic body fluids.

You should also siphon out as many dead flatworms as you can to further decrease toxins in the water. The toxicity of body fluids released by the dead flatworms can be reduced by using about 1 pound of fresh high quality carbon for every 50 gallons. The carbon has to be used in a canister with a sufficient forced water flow. Take sufficient time for treating the tank. That is, do not treat your tank in a hurry. Also take time to monitor your tank for at least 6 hours after the treatment. It is also wise to have at least 25% water ready for a water change if required and sufficient fresh activated carbon in a canister ready.

Tech Notes

1 drop for every 4 liters or 1 gallon. The dropper contains approx. 300 drops (10 ml). The dropper cap holds approx. 90 drops. 1 cap full is good for 360 liters or 90 gallons. Add it in a high flow area of the tank. If you want to treat a refugium only and if it’s volume is too small for using a powerhead then mixing should be done manually.